CN108295355B

CN108295355B - Superposed sleeve for dacryocystorhinostomy and preparation method thereof

Info

Publication number: CN108295355B
Application number: CN201810235666.3A
Authority: CN
Inventors: 刘锋; 钟玲; 刘果; 张颖
Original assignee: West China Hospital of Sichuan University
Current assignee: West China Hospital of Sichuan University
Priority date: 2018-03-21
Filing date: 2018-03-21
Publication date: 2020-04-07
Anticipated expiration: 2038-03-21
Also published as: CN108295355A

Abstract

The invention discloses a superposed sleeve for dacryocystorhinostomy and a preparation method thereof, wherein the superposed sleeve comprises a main drainage pipe and a branch drainage pipe, wherein the main drainage pipe is provided with an air sac, two ends of the branch drainage pipe are respectively provided with an elliptical drainage disc and a tail end fixing screw rod, the tail end fixing screw rod extends to a stoma in a nasal cavity, and the tail end fixing screw rod at the tail end is provided with a sleeve for fixing through a fastener; selecting a hollow silica gel catheter, puncturing two ends of the silica gel catheter to be used as a drainage main pipe, and fixedly installing drainage branch pipes by using central axes of two ends of the drainage main pipe; the end surfaces of the outer sides of the drainage branch pipes are all ground, and an elliptical drainage disc and a tail end fixing screw rod are additionally arranged; heating and shaping the drainage tube according to the shape requirement; the drainage tube is convenient to implant, does not need an additional traction device, does not need complex treatment such as knotting in a nasal cavity, is comfortable for a patient to feel, does not have side injury, can normally drain tears due to the fact that the drainage tube is designed to be hollow, is not easy to infect, and obviously relieves symptoms during implantation.

Description

Superposed sleeve for dacryocystorhinostomy and preparation method thereof

Technical Field

The invention relates to the technical field of medical instruments, in particular to a superposed sleeve for dacryocystorhinostomy and a preparation method thereof.

Background

Chronic dacryocystitis is better developed for female patients, the most common method for treating the chronic dacryocystitis is dacryocystitis nasal cavity pore-forming under a nasal endoscope is currently adopted except for the traditional ophthalmological operation, and the domestic operation has been carried out for over twenty years, however, for Chinese women, the volumes of the dacryocystitis and the nasal cavity are relatively small, so that the adhesion at a stoma is easy to narrow and even to be locked, and the operation is failed and recurs, even recurs. However, how to avoid the problem which always troubles the clinic, most of the existing implantation devices are designed for the traditional ophthalmic surgery and are not suitable for the use of the intranasal endoscopic surgery, and the few devices used for the intranasal endoscopic surgery have the problems of difficult implantation, more complications, poor comfort and the like.

The existing implanting device for the nasal endoscope dacryocyst nasal cavity pore-creating operation is mostly a lacrimal passage drainage tube, which enters an upper lacrimal punctum and a lower lacrimal punctum respectively through an upper probe and a lower probe and reaches a pore-creating part downwards, then the head parts of the two probes are pulled into the nasal cavity by a traction hook and are knotted and fixed at the pore-creating part. The existing lacrimal passage drainage tube is difficult to implant, the tractor is long in implantation time, knotting in a nasal cavity is difficult, time is wasted, and accurate positioning at a pore-forming part is difficult, the involution of a nasal cavity mucosa flap and a lachrymal sac wall is not facilitated, upper and lower punctum are required to be implanted simultaneously, complications such as tearing the punctum in a shearing manner and the like can be caused, a pipeline occupies an inner canthus, foreign body sensation is strong, the comfort is poor, and the lacrimal passage drainage tube is solid and is easy to infect due to the fact that epiphora is aggravated during implantation, and most importantly, the lacrimal passage is inconvenient to wash during implantation in the prior art.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the superposed sleeve for dacryocystorhinostomy and the preparation method thereof, which have the advantages of convenient implantation, simple operation, small rejection effect of patients, better comfort, auxiliary flushing and capability of effectively solving the problems provided by the background technology.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the utility model provides a superpose sleeve pipe for dacryocystorhinostomy, includes drainage house steward and two drainage branch pipes different in size, drainage branch pipe fixed mounting is at drainage house steward both ends, and is equipped with the air vesicle district on drainage house steward, is equipped with oval drainage dish at longer drainage branch pipe end, and is equipped with terminal clamping screw on shorter drainage branch pipe, terminal clamping screw extends to the inside department of making the hole of nasal cavity, and installs the sleeve pipe that is used for fixing through the fastener on the terminal clamping screw of this department.

As a preferable technical scheme, the shape and the size of the connector of the main drainage pipe and the branch drainage pipe are completely the same as those of the lacrimal passage, and the main drainage pipe is positioned inside the nasal cavity.

In a preferred embodiment of the present invention, the sleeve is in the shape of an inverted circular truncated cone and is disposed between the sleeve and the fastener by an annular pad fixed to an inner wall of the sleeve.

In addition, the invention also provides a preparation method of the superposed sleeve for dacryocystorhinostomy, which comprises the following steps:

100, selecting a hollow silica gel catheter, respectively piercing the centers of the end faces at the two ends of the silica gel catheter by using needles to form communicated hollow micropores serving as a drainage main pipe, and fixedly installing drainage branch pipes by using the hollow micropores at the two ends of the drainage main pipe as central axes;

step 200, sanding the end surfaces of the outer sides of the drainage branch pipes, additionally arranging an oval drainage disc in the longer end of the drainage branch pipes, and additionally arranging a tail end fixing screw rod on the outer side of the shorter end of the drainage branch pipes;

step 300, heating and shaping the drainage tube at 50-60 ℃ according to the shape requirement, naturally cooling after thermoplastic solidification, and sterilizing for later use.

Compared with the prior art, the invention has the beneficial effects that: the drainage tube is convenient to implant, can reach a stoma by only implanting the drainage main tube and the drainage branch tube from the punctum, is matched with a lacrimal passage probe widely used clinically, does not need an additional traction device, takes time for only a few minutes, does not need complex treatment such as knotting in a nasal cavity, only needs to be sleeved with a sleeve and inserted into a fastener, accords with the operation habit of a rhinoscope operator, can dynamically fix the drainage main tube and the drainage branch tube only at the punctum, does not have foreign matters at the inner canthus, is comfortable for the patient to feel, does not have side damage, is designed into a hollow shape, can normally drain tears, is not easy to infect, has obvious symptom relief during implantation, and can be assisted by a bubble sac to flush the lacrimal passage.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic flow chart of the present invention;

reference numbers in the figures: 1-a drainage manifold; 2-drainage branch pipe; 3-gas vesicles; 4-an elliptical drainage tray; 5-fixing the screw at the tail end; 6-a fastener; 7-a sleeve; 8-ring pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, the invention provides a superposed sleeve for dacryocystorhinostomy, which comprises a main drainage pipe 1 and two branch drainage pipes 2 with different lengths, because the drainage main pipe 1 and the drainage branch pipes 2 are both hollow, tears can be drained normally, infection is not easy, and symptoms are relieved obviously during implantation, the drainage branch pipes 2 are fixedly arranged at two ends of the drainage main pipe 1, and the air bubble bag 3 is arranged on the drainage main pipe 1, the air bubble bag 3 can assist in flushing when the lacrimal passage is flushed, the flushing principle is the same as the principle of removing air bubbles during transfusion, an elliptic drainage disk 4 is arranged at the tail end of the longer drainage branch pipe 2, and a tail end fixing screw rod 5 is arranged on the shorter drainage branch pipe 2, the tail end fixing screw rod 5 extends to a stoma in the nasal cavity, and a sleeve 7 for fixing is arranged on the end fixing screw rod 5 at the position through a fastener 6.

The implantation is convenient, only need implant drainage house steward 1 and drainage branch pipe 2 by the punctum down can reach and make the hole department, uses with the lacrimal passage probe that clinically extensively uses, does not need extra draw gear, only takes a few minutes consuming time, can also alleviate patient's misery when the clinician of being convenient for operates.

Furthermore, the complex treatment of knotting in the nasal cavity can be avoided by the connecting mode of the sleeve 7 and the fastener 6, and the operation habit of a nasal endoscope operator can be compounded only by sleeving the sleeve 5.

In a preferred embodiment, the shape and size of the connection body of the drainage manifold 1 and the drainage branch tube 2 are identical to those of the lacrimal passage, the drainage manifold 1 is positioned inside the nasal cavity, the sleeve 7 is in a shape of an inverted frustum, and an annular pad 8 fixed on the inner wall of the sleeve 7 is arranged between the sleeve 7 and the fastener 6.

The drainage manifold 1 and the drainage branch pipes 2 are only limited to the dynamic fixation at the lower lacrimal punctum, and the overall structure formed by the drainage manifold 1 and the drainage branch pipes 2 conforms to the anatomical physiological structure of the lacrimal duct of the human body, and the inner canthus has no foreign matters, so that the patient feels comfortable and has no side injury.

In addition, as a preferred technical scheme of the invention, as shown in fig. 2, the invention also provides a preparation method of the superposed sleeve for dacryocystorhinostomy, which comprises the following steps:

In this embodiment, there is also provided and used a method, which is specifically as follows:

firstly, opening a lower punctum, implanting a main drainage pipe and a branch drainage pipe through a lacrimal probe, and enabling the main drainage pipe and the branch drainage pipe to reach a stoma;

secondly, adjusting the positions of the main drainage pipe and the branch drainage pipes to ensure that the elliptical drainage plate is attached to the inner wall of the lacrimal sac;

finally, the sleeve is sleeved after the main drainage tube and the branch drainage tube reach the nasal cavity stoma, and the sleeve is fixed through a fastener.

In conclusion, the invention is based on the design concept of harmless fixation, and has the advantages of simple and easy operation, stable and comfortable implantation and satisfactory shaping effect through the design of the sleeve coupled at the lachrymal sac and nasal cavity pore-forming part.

In summary, the main features of the present invention are: the drainage tube is convenient to implant, can reach a stoma by only implanting the drainage main tube and the drainage branch tube from the punctum, is matched with a lacrimal passage probe widely used clinically, does not need an additional traction device, takes time for only a few minutes, does not need complex treatment such as knotting in a nasal cavity, only needs to be sleeved with a sleeve and inserted into a fastener, accords with the operation habit of a rhinoscope operator, can dynamically fix the drainage main tube and the drainage branch tube only at the punctum, does not have foreign matters at the inner canthus, is comfortable for the patient to feel, does not have side damage, is designed into a hollow shape, can normally drain tears, is not easy to infect, has obvious symptom relief during implantation, and can be assisted by a bubble sac to flush the lacrimal passage.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A superposed sleeve for dacryocystorhinostomy, characterized in that: including drainage house steward (1) and two drainage branch pipe (2) that differ in size, drainage branch pipe (2) fixed mounting is at drainage house steward (1) both ends, and is equipped with air bubble bag (3) on drainage house steward (1), is equipped with oval drainage dish (4) at longer drainage branch pipe (2) end, and is equipped with terminal clamping screw (5) on shorter drainage branch pipe (2), terminal clamping screw (5) extend to the inside pore site department that makes of nasal cavity, and install through fastener (6) on terminal clamping screw (5) of this department and be used for fixed sleeve pipe (7).

2. The superposed sleeve for dacryocystorhinostomy according to claim 1, characterised in that the junction of the main drainage duct (1) and the branch drainage duct (2) has a shape and size identical to the shape and size of the lacrimal passage, and the main drainage duct (1) is located inside the nasal cavity.

3. A superposed sleeve for dacryocystorhinostomy according to claim 1, characterised in that the sleeve (7) is of rounded truncated shape and passes between the sleeve (7) and the clip (6) through an annular pad (8) fixed to the inner wall of the sleeve (7).

4. The superposed sleeve for dacryocystorhinostomy as claimed in any one of claims 1-3, further comprising a method of preparation comprising the steps of: